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Andoh T, Kikukawa T, Kotani A, Kurokawa Y, Asakura W, Houmoto K, Fukutomi D, Uta D, Okai H, Koike K. Combined effect of Neurotropin® and methylcobalamin on postherpetic neuralgia in mice infected with herpes simplex virus type-1. J Dermatol Sci 2024; 113:138-147. [PMID: 38429137 DOI: 10.1016/j.jdermsci.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/16/2024] [Accepted: 02/09/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND Postherpetic pain (PHP) is difficult to control. Although Neurotropin® (NTP) and methylcobalamin (MCB) are often prescribed to treat the pain, the efficacy of combined treatment for PHP remains imcompletely understood. OBJECTIVE In this study, we investigate the combined effects of NTP and MCB on PHP in mice. METHODS NTP and MCB were administered from day 10-29 after herpes simplex virus type-1 (HSV-1) infection. The pain-related responses were evaluated using a paint brush. The expression of neuropathy-related factor (ATF3) and nerve repair factors (GAP-43 and SPRR1A) in the dorsal root ganglion (DRG) and neurons in the skin were evaluated by immunohistochemical staining. Nerve growth factor (NGF) and neurotrophin-3 (NT3) mRNA expression levels were evaluated using real-time PCR. RESULTS Repeated treatment with NTP and MCB after the acute phase inhibited PHP. Combined treatment with these drugs inhibited PHP at an earlier stage than either treatment alone. In the DRG of HSV-1-infected mice, MCB, but not NTP, decreased the number of cells expressing ATF3 and increased the number of cells expressing GAP-43- and SPRR1A. In addition, MCB, but not NTP, also increased and recovered non-myelinated neurons decreased in the lesional skin. NTP increased the mRNA levels of NTF3 in keratinocytes, while MCB increased that of NGF in Schwann cells. CONCLUSION These results suggest that combined treatment with NTP and MCB is useful for the treatment of PHP. The combined effect may be attributed to the different analgesic mechanisms of these drugs.
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Affiliation(s)
- Tsugunobu Andoh
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan; Department of Pharmacology and Pathophysiology, College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan.
| | - Takashi Kikukawa
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Atsushi Kotani
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Yoko Kurokawa
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Wakana Asakura
- Department of Pharmacology and Pathophysiology, College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Kengo Houmoto
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Daisuke Fukutomi
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Daisuke Uta
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Hisashi Okai
- Department of Pharmacological Research, Institute of Bio-active Science, Nippon Zoki Pharmaceutical Co., Ltd, Hyogo, Japan
| | - Koji Koike
- Department of Pathophysiology, Institute of Bio-active Science, Nippon Zoki Pharmaceutical Co., Ltd, Hyogo, Japan
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Bernard A, Mroué M, Bourthoumieu S, Boyce M, Richard L, Sturtz F, Demiot C, Danigo A. Netazepide, an Antagonist of Cholecystokinin Type 2 Receptor, Prevents Vincristine-Induced Sensory Neuropathy in Mice. Pharmaceuticals (Basel) 2024; 17:144. [PMID: 38399359 PMCID: PMC10892341 DOI: 10.3390/ph17020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024] Open
Abstract
Among the vinca-alkaloid class, vincristine is a potent chemotherapeutic agent with significant neurotoxic effects and is employed to address a wide spectrum of cancer types. Recently, the therapeutic potential of the cholecystokinin type 2 receptor (CCK2R) as a target for vincristine-induced peripheral neuropathy (VIPN) was demonstrated. In this study, the impact of preventive CCK2R blockade using netazepide (Trio Medicines Ltd., London, UK) was investigated in a mouse model of vincristine-induced peripheral neuropathy. Netazepide is a highly selective CCK2R antagonist under development for the treatment of patients with gastric neuroendocrine tumors caused by hypergastrinemia secondary to chronic autoimmune atrophic gastritis. Vincristine-induced peripheral neuropathy was induced by intraperitoneal injections of vincristine at 100 µg/kg/d for 7 days (D0 to D7). Netazepide (2 mg/kg/d or 5 mg/kg/d, per os) was administered one day before vincristine treatment until D7. Vincristine induced a high tactile allodynia from D1 to D7. VIPN was characterized by dorsal root ganglion neuron (DRG) and intraepidermal nerve fiber (IENF) loss, and enlargement and loss of myelinated axons in the sciatic nerve. Netazepide completely prevented the painful symptoms and nerve injuries induced by vincristine. In conclusion, the fact that netazepide protected against vincristine-induced peripheral neuropathy in a mouse model strongly supports the assessment of its therapeutic potential in patients receiving such chemotherapy.
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Affiliation(s)
- Amandine Bernard
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
| | - Mohamad Mroué
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
| | - Sylvie Bourthoumieu
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
- Department of Cytogenetic, Medical Genetic and Reproduction Biology, University Hospital of Limoges, 87042 Limoges, France
| | - Malcolm Boyce
- Hammersmith Medicines Research Limited and Trio Medicines Limited, 44 Cumberland Avenue, London NW10 7EW, UK;
| | - Laurence Richard
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
- Department of Neurology, Reference Center for Rare Peripheral Neuropathies, University Hospital of Limoges, 87042 Limoges, France
| | - Franck Sturtz
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
- Department of Biochemistry and Molecular Genetics, University Hospital of Limoges, 87042 Limoges, France
| | - Claire Demiot
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
- Transversal and Territorial Therapeutic Education Unit (UTTEP87), University Hospital of Limoges, 87042 Limoges, France
| | - Aurore Danigo
- NeurIT Neuropathies et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87025 Limoges, France; (A.B.); (M.M.); (S.B.); (L.R.); (F.S.); (C.D.)
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Ou M, Chen J, Yang S, Xiao L, Xiong D, Wu S. Rodent models of postherpetic neuralgia: How far have we reached? Front Immunol 2023; 14:1026269. [PMID: 37020565 PMCID: PMC10067614 DOI: 10.3389/fimmu.2023.1026269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/22/2023] [Indexed: 04/07/2023] Open
Abstract
Background Induced by varicella zoster virus (VZV), postherpetic neuralgia (PHN) is one of the common complications of herpes zoster (HZ) with refractory pain. Animal models play pivotal roles in disclosing the pain mechanisms and developing effective treatments. However, only a few rodent models focus on the VZV-associated pain and PHN. Objective To summarize the establishment and characteristics of popular PHN rodent models, thus offer bases for the selection and improvement of PHN models. Design In this review, we retrospect two promising PHN rodent models, VZV-induced PHN model and HSV1-induced PHN model in terms of pain-related evaluations, their contributions to PHN pathogenesis and pharmacology. Results Significant difference of two PHN models is the probability of virus proliferation; 2) Most commonly used pain evaluation of PHN model is mechanical allodynia, but pain-induced anxiety and other behaviours are worth noting; 3) From current PHN models, pain mechanisms involve changes in virus gene and host gene expression, neuroimmune-glia interactions and ion channels; 4) antiviral drugs and classical analgesics serve more on the acute stage of herpetic pain. Conclusions Different PHN models assessed by various pain evaluations combine to fulfil more comprehensive understanding of PHN.
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Affiliation(s)
- Mingxi Ou
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Jiamin Chen
- Teaching and Research Group of Biology, Vanke Bilingual School (VBS), Shenzhen, China
| | - Shaomin Yang
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Lizu Xiao
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Donglin Xiong
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Songbin Wu
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
- *Correspondence: Songbin Wu,
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The Contribution of TSLP Activation to Hyperalgesia in Dorsal Root Ganglia Neurons of a Rat. Int J Mol Sci 2022; 23:ijms23042012. [PMID: 35216130 PMCID: PMC8875239 DOI: 10.3390/ijms23042012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 12/30/2022] Open
Abstract
Peripheral nerve injury involves divergent alterations within dorsal root ganglia (DRG) neurons sensitized by persistent inflammation. Thymic stromal lymphopoietin (TSLP) production is crucial in the development of chronic inflammatory responses. Herein, we investigate the changes of TSLP expression in rats’ DRG neurons between injured and uninjured sides in the same rat. Linalyl acetate (LA) was served as a TSLP inhibitor and given intraperitoneally. Rats were assigned to be group of chronic constriction injury (CCI) of the sciatic nerve and the group of CCI of the sciatic nerve administrated with LA. Over 14 days, the rats were measured for paw withdrawal thresholds. DRGs were collected to assess morphological changes via immunofluorescence study. After receiving CCI, the rats rapidly developed mechanical hyperalgesia. TSLP expression at DRG, on the ipsilateral injured side, was consistent with changes in pain behaviors. TSLP appeared in nerve fibers with both small diameters and large diameters. Additionally, TSLP was expressed mostly in transient receptor potential vanilloid-1 (TRPV1)-positive nociceptive neurons. Administration with LA can attenuate the pain behaviors and expression of TSLP in DRG neurons, and in apoptotic neurons at the injured side, but not in the contra-lateral uninjured side. Overall, these results imply that altered expressions of TSLP in nociceptive DRG neurons contributed to mechanical hyperalgesia in a CCI rat model.
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The Role of ATP Receptors in Pain Signaling. Neurochem Res 2022; 47:2454-2468. [DOI: 10.1007/s11064-021-03516-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/11/2021] [Accepted: 12/22/2021] [Indexed: 12/21/2022]
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C-tactile touch perception in patients with chronic pain disorders. Pain Rep 2021; 6:e941. [PMID: 34235344 PMCID: PMC8253581 DOI: 10.1097/pr9.0000000000000941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 05/16/2021] [Accepted: 05/19/2021] [Indexed: 12/26/2022] Open
Abstract
Supplemental Digital Content is Available in the Text. C-tactile stimulation in patients with chronic pain results in reduced pleasantness perception. Results suggest impaired C-tactile function with functional loss of pleasant touch perception in patients with postherpetic neuralgia. Introduction: Slow brushing over the skin activates C-tactile nerve fibers that transmit pleasant tactile experiences in healthy subjects, leading to an inverted U-shaped velocity dependence of ratings: C-tactile optimal stroking stimulations are rated as more pleasant than slower or faster stimulations. Chronic pain diseases such as postherpetic neuralgia (PHN) and complex regional pain syndrome show altered C-fiber innervation density, sensory loss, and pain sensitization. Objectives: We aimed to investigate whether C-tactile function is affected in painful conditions. Methods: We assessed psychophysically C-tactile function and sensory perception thresholds in 16 patients with PHN, 19 patients with complex regional pain syndrome, and 22 healthy controls. Results: Assessment of C-tactile function showed a significantly altered perceived pleasantness of CT stimulation between healthy controls and patients with chronic pain. In specific, tactile stimulation was perceived less pleasant on the affected and contralateral side when compared with controls. In patients with PHN, velocity-dependent pleasantness ratings could not be obtained, suggesting highly impaired C-tactile function with functional loss of pleasant touch perception. Conclusions: In conclusion, this is the first report of impaired C-tactile function in patients with PHN. Reduced pleasantness resulting from gentle touch can reflect defective C-fiber function or result from central nervous system effects in a chronic pain state.
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Inoue K, Tsuda M. Nociceptive signaling mediated by P2X3, P2X4 and P2X7 receptors. Biochem Pharmacol 2020; 187:114309. [PMID: 33130129 DOI: 10.1016/j.bcp.2020.114309] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 12/18/2022]
Abstract
Chronic pain is a debilitating condition that often occurs following peripheral tissue inflammation and nerve injury. This pain, especially neuropathic pain, is a significant clinical problem because of the ineffectiveness of clinically available drugs. Since Burnstock proposed new roles of nucleotides as neurotransmitters, the roles of extracellular ATP and P2 receptors (P2Rs) in pain signaling have been extensively studied, and ATP-P2R signaling has subsequently received much attention as it can provide clues toward elucidating the mechanisms underlying chronic pain and serve as a potential therapeutic target. This review summarizes the literature regarding the role of ATP signaling via P2X3Rs (as well as P2X2/3Rs) in primary afferent neurons and via P2X4Rs and P2X7Rs in spinal cord microglia in chronic pain, and discusses their respective therapeutic potentials.
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Affiliation(s)
- Kazuhide Inoue
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi, Fukuoka 812-8582, Japan
| | - Makoto Tsuda
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi, Fukuoka 812-8582, Japan; Department of Life Innovation, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi, Fukuoka 812-8582, Japan
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Inoue K. Nociceptive signaling of P2X receptors in chronic pain states. Purinergic Signal 2020; 17:41-47. [PMID: 33015745 DOI: 10.1007/s11302-020-09743-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/27/2020] [Indexed: 01/25/2023] Open
Abstract
P2X3 monomeric receptors (P2X3Rs) and P2X2/3 heteromeric receptors (P2X2/3Rs) in primary sensory neurons and microglial P2X4 monomeric receptors (P2X4Rs) in the spinal dorsal horn (SDH) play important roles in neuropathic pain. In particular, P2X4R in the spinal microglia during peripheral nerve injury (PNI), experimental autoimmune neuritis, and herpes models are useful to explore the potential strategies for developing new drugs to treat neuropathic pain. Recently, novel P2X4 antagonists, NP-1815-PX and NC-2600, were developed, which demonstrated potent and specific inhibition against rodent and human P2X4Rs. The phase I study of NC-2600 has been completed, and no serious side effects were reported. The roles played by purinergic receptors in evoking neuropathic pain provide crucial insights into the pathogenesis of neuropathic pain.
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Affiliation(s)
- Kazuhide Inoue
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Lapp HS, Sabatowski R, Weidner K, Croy I, Gossrau G. C-tactile touch perception in migraineurs – a case-control study. Cephalalgia 2019; 40:478-492. [DOI: 10.1177/0333102419889349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Background Migraine is characterized by sensory hypersensitivity and habituation deficits. Slow brushing over the skin activates C-tactile nerve fibers, which mediate pleasant touch and analgesic effects in healthy subjects. As this function is altered in painful conditions, we aimed to examine whether the C-tactile processing is disrupted in migraines. Methods To psychophysically assess C-tactile function, we applied optimal and suboptimal C-tactile stroking stimuli on the dorsal forearm (body reference area) and the trigeminally innervated skin of 52 interictal migraineurs and 52 matched healthy controls. For habituation testing, 60 repeated C-tactile optimal stimuli were presented in both test areas. The participants rated each stimulus on a visual analogue scale by intensity, pleasantness, and painfulness. Results Regarding C-tactile function, migraineurs showed unphysiological rating patterns but no significantly different pleasantness ratings than controls. During repeated stimulation, controls showed stable pleasantness ratings while migraineurs’ ratings decreased, especially in those experiencing tactile allodynia during headaches. Migraineurs taking triptans responded like controls. Conclusion The C-tactile function of migraineurs is subclinically altered. Repeated C-tactile stimulation leads to altered habituation but differs from previous work by the direction of the changes. Although the pathophysiology remains unknown, causative mechanisms could include central and peripheral neuronal sensitization, tactile allodynia and hedonic stimulus attributions.
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Affiliation(s)
- Hanna Sophie Lapp
- Pain Center, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
| | - Rainer Sabatowski
- Pain Center, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
- Department of Anesthesiology, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
| | - Kerstin Weidner
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
| | - Ilona Croy
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
| | - Gudrun Gossrau
- Pain Center, University Hospital and Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
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Chen Y, Shi Y, Wang G, Li Y, Cheng L, Wang Y. Memantine selectively prevented the induction of dynamic allodynia by blocking Kir2.1 channel and inhibiting the activation of microglia in spinal dorsal horn of mice in spared nerve injury model. Mol Pain 2019; 15:1744806919838947. [PMID: 30845882 PMCID: PMC6487752 DOI: 10.1177/1744806919838947] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Memantine is one of the important clinical medications in treating moderate to severe Alzheimer disease. The effect of memantine on preventing or treating punctate allodynia has been thoroughly studied but not on the induction of dynamic allodynia. The aim of this study is to investigate whether memantine could prevent the induction of dynamic allodynia and its underlying spinal mechanisms. Results (1) In in vivo spared nerve injury pain model, pretreatment with memantine at a lower dose (10 nmol, intrathecal; memantine-10) selectively prevented the induction of dynamic allodynia but not the punctate allodynia. (2) Pretreatment with either MK801-10 (MK801-10 nmol, intrathecal) or higher dose of memantine (30 nmol, intrathecal; memantine-30) prevented the induction of both dynamic and punctate allodynia. (3) Memantine-10 showed significant effect on the inhibition of the spared nerve injury-induced overactivation of microglia in spinal dorsal horn. (4) In contrast, in complete freund′s adjuvant (CFA) model, memantine-10 neither affected the CFA injection-induced activation of microglia in spinal dorsal horn nor the induction of dynamic allodynia. (5) Immunohistological studies showed Kir2.1 channel distributed widely and co-localized with microglia in the spinal dorsal horn of mice. (6) Pretreatment with either minocycline, a microglia inhibitor, or ML133, a Kir2.1 inhibitor, both selectively prevented the overactivation of microglia in spinal dorsal horn and the induction of dynamic allodynia following spared nerve injury. Conclusion The selective inhibitory effect on the induction of dynamic allodynia in spared nerve injury model by low dose of the memantine (memantine-10) was tightly correlated with the blockade of microglia Kir2.1 channel to suppress the microglia activation.
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Affiliation(s)
- Yangyang Chen
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiqian Shi
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guoxiang Wang
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yimei Li
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Longzhen Cheng
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yun Wang
- 1 Neurology Department, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
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Inoue K. Role of the P2X4 receptor in neuropathic pain. Curr Opin Pharmacol 2019; 47:33-39. [DOI: 10.1016/j.coph.2019.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 01/25/2023]
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Neuroprotective effect of angiotensin II type 2 receptor stimulation in vincristine-induced mechanical allodynia. Pain 2019; 159:2538-2546. [PMID: 30086116 DOI: 10.1097/j.pain.0000000000001361] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Peripheral neuropathy is the major dose-limiting side effect of many currently used chemotherapies, such as vincristine (VCR). We recently demonstrated that candesartan, an angiotensin II type 1 receptor antagonist, was neuroprotective against resiniferatoxin-induced sensory neuropathy, and that this effect is mediated by stimulation of the angiotensin II type 2 receptor (AT2R). Thus, we evaluated the effect of preventive treatment with candesartan and a specific AT2R agonist, C21, on a mouse model of VCR-induced neuropathy. Vincristine was administered daily for 7 days to male Swiss mice. Treatment with candesartan and C21 was started on day 1, before VCR treatment, and continued until day 7. We evaluated the development of VCR-induced neuropathy and the effect of treatment by functional tests, immunohistochemical analyses of intraepidermal nerve fibers and dorsal root ganglia neurons, and ultrastructural analysis of the sciatic nerve. Mice treated with VCR showed high mechanical allodynia but no modifications of motor performance or mechanical/thermal nociception. Treatment with candesartan and C21 completely restored normal tactile sensitivity of VCR-treated mice. Both drugs prevented VCR-induced nonpeptidergic intraepidermal nerve fiber loss. Only C21 displayed neuroprotective effects against VCR-induced loss and enlargement of myelinated nerve fibers in the sciatic nerve. Our finding that candesartan and C21 are protective against VCR-induced neuropathic pain through AT2R stimulation favors evaluation of its therapeutic potential in patients receiving chemotherapy.
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Liu MX, Zhong J, Zhu J, Xia L, Dou NN. Treatment of Postherpetic Neuralgia Using DREZotomy Guided by Spinal Cord Stimulation. Stereotact Funct Neurosurg 2015; 93:178-81. [DOI: 10.1159/000375174] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 01/13/2015] [Indexed: 11/19/2022]
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Bian C, Zhao ZQ, Zhang YQ, Lü N. Involvement of CX3CL1/CX3CR1 signaling in spinal long term potentiation. PLoS One 2015; 10:e0118842. [PMID: 25768734 PMCID: PMC4358970 DOI: 10.1371/journal.pone.0118842] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 01/14/2015] [Indexed: 12/30/2022] Open
Abstract
The long-term potentiation (LTP) of spinal C-fiber-evoked field potentials is considered as a fundamental mechanism of central sensitization in the spinal cord. Accumulating evidence has showed the contribution of spinal microglia to spinal LTP and pathological pain. As a key signaling of neurons-microglia interactions, the involvement of CX3CL1/CX3CR1 signaling in pathological pain has also been investigated extensively. The present study examined whether CX3CL1/CX3CR1 signaling plays a role in spinal LTP. The results showed that 10-trains tetanic stimulation (100 Hz, 2s) of the sciatic nerve (TSS) produced a significant LTP of C-fiber-evoked field potentials lasting for over 3 h in the rat spinal dorsal horn. Blockade of CX3CL1/CX3CR1 signaling with an anti-CX3CR1 neutralizing antibody (CX3CR1 AB) markedly suppressed TSS-induced LTP. Exogenous CX3CL1 significantly potentiated 3-trains TSS-induced LTP in rats. Consistently, spinal LTP of C-fiber-evoked field potentials was also induced by TSS (100 Hz, 1s, 4 trains) in all C57BL/6 wild type (WT) mice. However, in CX3CR1-/- mice, TSS failed to induce LTP and behavioral hypersensitivity, confirming an essential role of CX3CR1 in spinal LTP induction. Furthermore, blockade of IL-18 or IL-23, the potential downstream factors of CX3CL1/CX3CR1 signaling, with IL-18 BP or anti-IL-23 neutralizing antibody (IL-23 AB), obviously suppressed spinal LTP in rats. These results suggest that CX3CL1/CX3CR1 signaling is involved in LTP of C-fiber-evoked field potentials in the rodent spinal dorsal horn.
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Affiliation(s)
- Chao Bian
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
| | - Zhi-Qi Zhao
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
| | - Yu-Qiu Zhang
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
- * E-mail: (NL); (YQZ)
| | - Ning Lü
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
- * E-mail: (NL); (YQZ)
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15
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Dong J, Yang L, Tang J, Zheng J. Dexmedetomidine alleviates rat post-ischemia induced allodynia through GRK2 upregulation in superior cervical ganglia. Auton Neurosci 2014; 187:76-83. [PMID: 25466829 DOI: 10.1016/j.autneu.2014.10.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 10/14/2014] [Accepted: 10/25/2014] [Indexed: 10/24/2022]
Abstract
A transient decrease in G protein-coupled receptor kinase 2 (GRK2) in nociceptors can produce long-lasting neuroplastic changes in nociceptor function, eventually enhancing and prolonging inflammatory hyperalgesia. Here, we investigated the effects of selective α2-adrenoceptor agonist dexmedetomidine (DMED) on GRK2 expression in superior cervical ganglion (SCG) in a rat model of complex regional pain syndrome type I (CRPS-I). The ipsilateral 50% paw withdrawal thresholds (PWTs) to mechanical stimuli decreased significantly starting from 24 h after ischemia-reperfusion (I/R) injury, and lasted for over 3 weeks; the ipsilateral cold allodynia scores, GRK2 protein and mRNA levels in SCGs all increased significantly. No significant differences were found in the contralateral side except GRK2 mRNA reduced significantly after 48 h I/R injury, but still higher than those in the ipsilateral side. Following daily injection of 10 μg/kg of DMED for a maximum of 7 days, the ipsilateral PWTs on days 1, 2, 7, 14, and 21 after DMED administration were significantly higher than those in control group; the GRK2 protein and mRNA expressions in the ipsilateral SCGs were also significantly upregulated; the ipsilateral cold allodynia scores were significantly reduced. No significant differences were found in the contralateral 50%PWTs, cold allodynia scores, and GRK2 protein level except GRK2 mRNA levels increased significantly on days 1 to 7 after DMED administration. Therefore, a transient decrease of GRK2 expression in SCG neurons might be involved in the development and maintenance of allodynia in CRPS-I and DMED might alleviate this allodynia through GRK2 upregulation in SCG neurons.
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Affiliation(s)
- Jing Dong
- Department of Anesthesiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Department of Anesthesiology, Shanghai First People's Hospital, Shanghai Jiaotong University affiliated Shanghai First People's Hospital, Shanghai 201620, China.
| | - Li Yang
- Department of Anesthesiology, Jinshan Hospital, Fudan University, Shanghai, China.
| | - Jun Tang
- Department of Anesthesiology, Jinshan Hospital, Fudan University, Shanghai, China.
| | - Jijian Zheng
- Department of Anesthesiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Department of Anesthesiology, Shanghai First People's Hospital, Shanghai Jiaotong University affiliated Shanghai First People's Hospital, Shanghai 201620, China.
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16
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Kuraishi Y. [A memoir of my research on pain and analgesia for 39 years]. YAKUGAKU ZASSHI 2014; 134:1125-42. [PMID: 25366910 DOI: 10.1248/yakushi.14-00194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This review describes my research for the past 39 years regarding the pharmacology of pain and analgesia. We have demonstrated that the descending noradrenergic system is involved in the analgesic effect of morphine injected into the nucleus reticularis gigantocellularis, and that noradrenaline exerts antinociception mediated by α-adrenoceptors. We have found that noxious mechanical and thermal stimuli to the skin increase the release of substance P and somatostatin, respectively, from the dorsal horn in situ, and that noradrenaline inhibits the release of substance P and glutamate from primary afferents. We developed an animal model of cancer pain using melanoma cells. We have shown that the suppression of cancer pain results in the inhibition of tumor growth and lung metastasis, and that melanoma cells release several algogenic substances including ATP, endothelin-1, and bradykinin. We investigated neuropathic allodynia induced by the chemotherapeutic drugs paciltaxel, oxaliplatin, vincristine, and bortezomib. Single administration of these drugs caused allodynia with similar time-courses. However, antiallodynic actions of adjuvant analgesics, including gabapentin and limaprost, were dependent on the chemotherapeutic drugs used. Limaprost experiments have revealed that a decrease in peripheral blood flow is involved in allodynia exacerbation after the administration of paciltaxel and oxaliplatin. We have developed animal models of herpetic pain and postherpetic neuralgia using herpes simplex virus 1. We have demonstrated that nitric oxide, prostaglandin E2, and galectin-3 are involved in herpetic allodynia, that risk factors associated with postherpetic allodynia include severe herpetic pain, nociceptin, and major histocompatibility complex, and that deafferentation and nitric oxide are involved in postherpetic allodynia.
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Affiliation(s)
- Yasushi Kuraishi
- Laboratory of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
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17
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Sasaki A, Mizoguchi S, Kagaya K, Shiro M, Sakai A, Andoh T, Kino Y, Taniguchi H, Saito Y, Takahata H, Kuraishi Y. A Mouse Model of Peripheral Postischemic Dysesthesia: Involvement of Reperfusion-Induced Oxidative Stress and TRPA1 Channel. J Pharmacol Exp Ther 2014; 351:568-75. [DOI: 10.1124/jpet.114.217570] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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18
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McDonough P, McKenna JP, McCreary C, Downer EJ. Neuropathic orofacial pain: cannabinoids as a therapeutic avenue. Int J Biochem Cell Biol 2014; 55:72-8. [PMID: 25150831 DOI: 10.1016/j.biocel.2014.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/07/2014] [Accepted: 08/09/2014] [Indexed: 01/09/2023]
Abstract
Neuropathic orofacial pain (NOP) exists in several forms including pathologies such as burning mouth syndrome (BMS), persistent idiopathic facial pain (PIFP), trigeminal neuralgia (TN) and postherpetic neuralgia (PHN). BMS and PIFP are classically diagnosed by excluding other facial pain syndromes. TN and PHN are most often diagnosed based on a typical history and presenting pain characteristics. The pathophysiology of some of these conditions is still unclear and hence treatment options tend to vary and include a wide variety of treatments including cognitive behaviour therapy, anti-depressants, anti-convulsants and opioids; however such treatments often have limited efficacy with a great amount of inter-patient variability and poorly tolerated side effects. Analgesia is one the principal therapeutic targets of the cannabinoid system and many studies have demonstrated the efficacy of cannabinoid compounds in the treatment of neuropathic pain. This review will investigate the potential use of cannabinoids in the treatment of symptoms associated with NOP.
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Affiliation(s)
- Patrick McDonough
- Cork University Dental School and Hospital, University College Cork, Cork, Ireland
| | - Joseph P McKenna
- Cork University Dental School and Hospital, University College Cork, Cork, Ireland
| | - Christine McCreary
- Cork University Dental School and Hospital, University College Cork, Cork, Ireland
| | - Eric J Downer
- Department of Anatomy and Neuroscience, Western Gateway Building, University College Cork, Cork, Ireland.
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19
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Quantitative sensory testing in the German Research Network on Neuropathic Pain (DFNS): Reference data for the trunk and application in patients with chronic postherpetic neuralgia. Pain 2014; 155:1002-1015. [DOI: 10.1016/j.pain.2014.02.004] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 12/31/2013] [Accepted: 02/05/2014] [Indexed: 12/24/2022]
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Kuraishi Y, Sasaki A. Animal models and pharmacology of herpetic and postherpetic pain. Curr Top Behav Neurosci 2014; 20:57-74. [PMID: 24496651 DOI: 10.1007/7854_2014_282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Varicella-zoster virus (VZV) causes varicella upon primary infection and subsequently becomes latent in the sensory ganglia. Reactivation of latent VZV in the sensory ganglion results in herpes zoster, which usually begins with pain and dysesthesia. Pain that persists long after healing of the rash is termed postherpetic neuralgia. VZV inoculation into rats induces mechanical allodynia and thermal hyperalgesia without causing herpes zoster. As with VZV, herpes simplex virus 1 (HSV1) is an alphaherpesvirus. HSV1 also becomes latent in the sensory ganglia after primary infection, and reactivation of latent HSV1 in the sensory ganglion results in herpes simplex. HSV1 inoculation into mice causes zoster-like skin lesions together with mechanical allodynia and mechanical hyperalgesia. A marked difference between the two rodent models is whether the herpes virus proliferates in the nervous system after inoculation. VZV-inoculated rats are useful for investigating mechanical allodynia induced by latent infection with herpes virus. HSV1-inoculated mice are useful for investigating mechanical allodynia induced by the proliferation of herpes virus in sensory neurons and for assessing the effects of acute herpetic pain on the incidence of postherpetic allodynia.
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Affiliation(s)
- Yasushi Kuraishi
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan,
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